超声振动磨削CFRP温度场的有限元仿真  

FEM Simulation of Temperature Field in Ultrasonic Vibration Grinding of CFRP

作　　者：刘军 范宝朋 陈燕[2] 梁宇红[2] Liu Jun;Fan Baopeng;Chen Yan;Liang Yuhong(China Shang Fei Shanghai Aircraft Manufacturing Co.,Ltd.,Shanghai 201325,China;Jiangsu Key Laboratory of Precision and Micro-Manufacturing Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]中国商飞上海飞机制造有限公司,上海201325 [2]南京航空航天大学江苏省精密与微细制造技术重点实验室,南京210016

出　　处：《机械科学与技术》2020年第6期821-828,共8页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家自然科学基金项目(51375234);校企合作项目(COMAC-SFGS-2018-2921)资助。

摘　　要：超声振动磨削时的高温易导致碳纤维增强树脂基复合材料(CFRP)的热损伤,为了分析超声振动磨削CFRP过程中的温度问题,借助有限元的方法对声振动磨削CFRP温度场进行了仿真。首先利用半人工热电偶在线测量了磨削温度,通过试验与仿真相结合的方法研究了传入0、45°、90°和135°纤维取向的单向CFRP中的热分配比。随后,根据超声振动磨削各单向CFRP的热分配比,建立了超声振动磨削多向CFRP磨削温度场仿真模型。最后,通过超声振动磨削试验对有限元模型的有效性进行了验证。The high temperature in the ultrasonic vibration grinding is likely to cause thermal damage of carbon fiber reinforced plastic(CFRP).In order to resolve the temperature problem in the ultrasonic vibration assisted grinding of CFRP,the temperature field is studied by using finite element method.Firstly,the ultrasonic vibration assisted grinding temperature is measured online by semi-manual thermocouple.The heat distribution ratio in the unidirectional CFRP with a fiber orientation of 0,45°,90°and 135°is studied by combing the experiment and simulation.Then,according to the heat distribution ratio of each unidirectional CFRP,a simulation model for temperature field in the ultrasonic vibration assisted grinding of multi-directional CFRP is established.Finally,the finite element model is verified by using ultrasonic vibration assisted grinding experiments performed on multi-directional CFRP.

关 键 词：超声振动磨削 碳纤维增强树脂基复合材料 温度场 热分配比 有限元仿真 

分 类 号：TG58[金属学及工艺—金属切削加工及机床]